18 free NEC-based electrician calculators that run 100% in the browser.
TradeCalc is a hub of 18 free electrician calculators: Ohm's law, voltage drop, conduit fill, wire size & ampacity, breaker sizing, motor full-load current, power factor correction, energy cost, transformer sizing, lighting, battery runtime, short-circuit current, residential load, cable resistance, solar PV sizing, box fill, and an electrical job cost estimator. Every calculator is NEC-based (NFPA 70 tables where stated), shows its formula and a worked example, and runs 100% in the browser — no sign-up, no tracking, no server. Built as a static site (plain HTML/CSS/JavaScript, zero dependencies, zero running costs) with one SEO page per calculator, plus About and Privacy pages. Pre-revenue: this is a brand-new project with no traffic or earnings history yet — priced at the bottom of the range for comparable calculator sites. WHAT THE BUYER GETS: the full source code, brand assets, and build/run instructions (one command builds the 21-page static site; deploy anywhere static hosting works, e.g. Vercel or Netlify). The site is sold as source code only and is not currently deployed.
Project details
Next step: <p>Deploy the static site, add more calculators, and grow SEO traffic from the one-page-per-calculator structure; monetisation options include ads, affiliate links or lead generation for electrical services.</p>
For sale
Asking price: $750 USD
What's included
Source code, All related design work
Full source code, brand assets, and build/run instructions (one command builds the 21-page static site). The site is sold as source code only and is not currently deployed; no domain name, hosting, email account or social account is included.
Reason for selling
I built TradeCalc as a ready-made asset for a buyer in the electrician-tools space and am focusing on other work.
Project metrics
Average Monthly Visitors: Pre-launch
Average Monthly Revenue: Pre-revenue
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